Paper Titles
Corrosion Resistance of β-SiAlON-Based Ceramics Against Molten Steel
p.147
From Earth Minerals to Nitrides
p.151
The Growth and the Reaction Mechanism of Si3N4 Powder from Silica
p.157
Carbothermal Reduction and Nitridation of Quartz Mineral for the Production of Alpha Silicon Nitride Powders
p.163
Carbothermal Reduction and Nitridation of Çanakkale Origin Kaolin for SiAlON Powder Production
p.169
Transformation Potential of Kalemaden Clay – 220 to Technological Ceramics
p.175
Liquid Phase Sintering of Aluminum Nitride
p.181
Aqueous Processing of AlN Powder
p.189
Microstructural Aspects of the Hot-Pressed Hexagonal Boron Nitride Ceramics with Limited Content of Boron Oxide
p.197

Carbothermal Reduction and Nitridation of Çanakkale Origin Kaolin for SiAlON Powder Production

Article Preview

Abstract:

SiAlON ceramics were successfully produced in the form of powders from high purity kaolin, a hydrated aluminium silicate, Al2Si2O5(OH)4 type of clay mineral (comprises 83.85% kaolinite, 13.59% quartz, 0.88% feldspar, 1.37% others) of Canakkale-Can origin. Factors affecting SiAlON powder production were temperature, holding time, gas-flow rate and preparation methods. System optimisation was achieved following the results succeeded from numerous testing and characterisation (with XRD, SEM, EDS, BET, etc.) of each test. Changing in gas flow rate, temperature and holding time at plateau temperature had influences on the final powder yield, their morphologies and phase formation. The best conversion of kaolin clay mineral to SiAlON ceramic powder was the test run at 1475oC for 4 hour under 1 lt/min N2-flow. Product after the process was mainly of β'- Si3Al3O3N5 (z=3) powder along with small amounts of Al2O3, mullite and AlN phases. Some powder product exhibits furry type of wiskers morphology, which may be useful for using as a reinforcing material in particulate composite bodies.

You might also be interested in these eBooks
Nitrides and Oxynitrides III View Preview

Info:

Periodical:

Materials Science Forum (Volume 554)

Pages:

169-174

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.554.169

Citation:

Cite this paper

Online since:

August 2007

Authors:

Zafer Tatli, Adem Demir, F. Caliskan

Keywords:

Carbothermal, Clay, Mullite, Silicate, ß-SiAlON

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] F. L. Riley (Ed. ): Nitrogen Ceramics, NATO Advanced Study Institutes Applied Science, series No. 23, Noordholf International, Leyden, (1974).

Google Scholar

[2] R. A. Andrievskii and I.I. Spivak: Silicon nitride and materials on its base, Metallurgiya, Moscow, (1984).

Google Scholar

[3] F. L. Riley: J. Amer. Ceram. Soc. Vol. 83 (2) (2000), p.245.

Google Scholar

[4] K. H. Jack: J. Mater. Sci. Vol. 11 (1976), p.1135.

Google Scholar

[5] Y. Oyama: Jpn. J. Appl. Phys. Vol. 11 (1972), p.750.

Google Scholar

[6] C. C. Sorrell and E. R. McCartney: Mater. Forum Vol. 9 (1972), p.148.

Google Scholar

[7] N. E. Cother and P. Hodgson: Br. Ceram. Trans. J. Vol. 81 (1982), p.141.

Google Scholar

[8] K. H. Jack and W.I. Wilson: Nature Vol. 238 (1972), p.28.

Google Scholar

[9] S. B. Hanna and N.M. Ghoneim: Interceramics Vol. 35 (1985), p.42.

Google Scholar

[10] J. E. Gilbert and A. Mosset: Mater. Res. Bull. Vol. 32 (1997), p.1441.

Google Scholar

[11] K. H. Jack: The crystal chemistry of the sialons and related nitrogen ceramics, in: F.L. Riely (Ed. ), Nitrogen Ceramics. Noordhoff International, Leyden, The Netherlands, (1976), p.109.

DOI: 10.1007/978-94-010-1298-0_7

Google Scholar

[12] M. H. Lewis, B. D. Powell and P. Drew: Nitrogen Ceramics F.L. Riely (Ed. ) Noordhoff International, Leyden, The Netherlands, Vol 12 (1977), pp.61-74.

Google Scholar

[13] J. G. Lee, I. B. Cutler: Am. Ceram. Soc. Bull. Vol. 58(9), (1979), pp.869-871.

Google Scholar

[14] X. J. Liu, X. W. Sun, J. J. Zhang, X. P. Pu and Q. M. Ge, & L. P. Huang: Materials Research Bulletin, Vol. 38, (2003), p.1939-(1948).

Google Scholar

[15] F. K. Van Dijen, & R. Metselaar: Reaction-rate-limiting steps in carbothermal reduction processes. Vol. 68(1), (1985), pp.16-19.

DOI: 10.1002/chin.198517030

Google Scholar

[16] J. Mukerji, S. Bandyopadhyay: Adv. Ceram. Mater. Vol. 3 (4) (1988), pp.369-373.

Google Scholar

[17] H. L. Lee, H. J. Lim, S. Kim and H. B. Lee: J. Am. Ceram. Ceram. Soc. Vol. 72 (8) (1989), p.1458.

Google Scholar

[18] J.C.T. Van der Heijde, R.A. Terpstra, J.W.T. Van Rutten, R. Metselaar: J. Eur. Ceram. Ceram. Soc. Vol. 17 (1997), pp.319-326.

Google Scholar

[19] J. Zheng and B. Forslund: J. Eur. Ceram. Soc. Vol. 19 (1999), pp.175-185.

Google Scholar

[20] F. K. Van Dijen, R. Metselaar and C.A.M. Siskens: J. Am. Ceram. Soc. Vol. 68 (1985), pp.16-19.

Google Scholar

[21] M. Hoch and K. M. Nair: Am. Ceram. Soc. Bull. Vol. 58 (1979), pp.191-193.

Google Scholar

[22] Y. W Cho and J. A. Charles: Synthesis of Nitrogen Ceramic Powders by Carbothermal Reduction and Nitridation, Mater. Sci. Tech. Vol. 7, (1991), pp.399-406.

Google Scholar